Cometic C9689-060 MLS Head Gasket Set Harley Evo 3.500" Bore .060" 2-Pack

The Cometic C9689-060 is a premium Multi-Layer Steel (MLS) head gasket set designed specifically for Harley-Davidson Evolution engines with stock 3.500-inch bore dimensions. This 2-pack includes both head gaskets needed for a complete top-end rebuild or refresh.

Key Features:

• Multi-Layer Steel (MLS-5) construction with five layers for superior sealing and durability
• .060-inch (1.52mm) compressed thickness for precise compression control
• Stock bore diameter of 3.500 inches for factory-spec Evolution engines
• Heavy-duty design engineered for high-performance and reliability
• Embossed stainless steel outer layers with elastomer coating
• Resists corrosion, extreme temperatures, and combustion pressure
• Direct replacement for OEM head gaskets

Cometic gaskets are manufactured using advanced materials and processes to provide exceptional sealing performance. The MLS design allows for minor imperfections in sealing surfaces while maintaining a gas-tight seal. Each gasket features precise combustion chamber and pushrod tube openings for proper fitment. Ideal for engine rebuilds, performance upgrades, or maintenance on Big Twin Evolution engines. Set includes two gaskets for complete installation.